Revision 0:ecd4f3e81bcf, committed 2017-01-05

Comitter:

mmills

Date:

Thu Jan 05 18:40:01 2017 +0000

Commit message:

Initial Revision.

Changed in this revision

diff -r 000000000000 -r ecd4f3e81bcf LcdDiscoF746NgTracer.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LcdDiscoF746NgTracer.cpp	Thu Jan 05 18:40:01 2017 +0000
@@ -0,0 +1,75 @@
+/*
+ License:
+  Copyright (C) 2017 GroveStreams LLC.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+ 
+#include "LcdDiscoF746NgTracer.h"
+
+
+LcdDiscoF746NgTracer::LcdDiscoF746NgTracer()
+{
+    _line = 0;
+    _maxLines = 21;
+    _lcd.Clear(LCD_COLOR_GREEN);
+    _lcd.SetBackColor(LCD_COLOR_GREEN);
+    _lcd.SetTextColor(LCD_COLOR_WHITE);
+    _lcd.SetFont(&Font12);
+}
+
+void LcdDiscoF746NgTracer::printf(const char* format, ...)
+{
+    char sbuffer[512] = {0};
+
+    va_list args;
+    va_start(args, format);
+    vsprintf(sbuffer, format, args);
+
+    this->println(sbuffer);
+
+    va_end(args);
+}
+
+void LcdDiscoF746NgTracer::println(const char* sbuffer)
+{
+
+    //LCD can only disply 60 chars at a time
+    int ichar = 0;
+    int charCount = strlen(sbuffer);
+    while (charCount>0) {
+    
+        char subbuff[61] = {0}; //Initialize buffer to nulls
+        if (charCount < 60) {
+            memcpy( subbuff, &sbuffer[ichar], charCount);
+            charCount=0;
+        } else {
+            memcpy( subbuff, &sbuffer[ichar], 60);
+            charCount -= 60;
+        }
+        
+        _lcd.DisplayStringAtLine(_line, (uint8_t *)subbuff);
+        
+        _line++;
+         if (_line == _maxLines) {
+             clear();
+        }
+        
+        ichar+=60;
+    }
+}
+
+void LcdDiscoF746NgTracer::clear()
+{
+    _line = 0;
+    _lcd.Clear(LCD_COLOR_GREEN);
+}
+
+

diff -r 000000000000 -r ecd4f3e81bcf LcdDiscoF746NgTracer.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LcdDiscoF746NgTracer.h	Thu Jan 05 18:40:01 2017 +0000
@@ -0,0 +1,60 @@
+/*
+ License:
+  Copyright (C) 2017 GroveStreams LLC.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+ 
+#ifndef LCDDISCOF746NG_H_
+#define LCDDISCOF746NG_H_
+
+#include "LCD_DISCO_F746NG.h"
+
+class LcdDiscoF746NgTracer
+{
+protected:
+    int _line;
+    int _maxLines;
+    LCD_DISCO_F746NG _lcd;
+
+public:
+
+    /** Constructor
+    *
+    */
+    LcdDiscoF746NgTracer();
+
+    /** Prints formatted strings to the LCD in a single line for each call. Long  
+    * lines are wrapped. The LCD is cleared after it is full. 
+    * Utilizes sprintf. sprintf does not support floats on many
+    * embed systems.
+    *
+    * \param format string format. 
+    * \param ... variable number of format arguments 
+    *  Example: printf("Successful update");
+    *  Example: printf("Current status: %d", status);
+    * \return 0 on success
+    */
+    void printf(const char* format, ...);
+    
+    /** Prints a string to the LCD in a single line for each call. Long  
+    * lines are wrapped. The LCD is cleared after it is full. 
+    *
+    * \param sbuffer string buffer 
+    */
+    void println(const char* sbuffer);    
+    
+    /** Clears the LCD
+    *
+    */
+    void clear();
+};
+
+#endif /* LCDDISCOF746NG_H_ */
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